Sleeve-valve engine



Oct. 28, 41930.

B. DE K. VAN DORSSEN El' AL SLEEVE VALVE `ENGINE Filer; Aug. 12., 192e ssneetssheet 1 INVENTORS Oef. 28, 1930. B. DE K. VAN DoRssEN Er AL1,779,835

SLEEVE VALVE ENGINE Filed Aug. 12, 1926 25 Sheets-Sheet 2 Oct. 28, 1930.s. DE K. VAN DoRssEN Ef AL 1,779,835

SLEEVE VALVE ENGINE Filed Aug. 1,2l 1925 3 Sheets-Sheet 5 INVENTOR DeKew/FF VIN Daexf/v.

Patented Oct. .28,

[.JfUNITED-STATES BRIAN DE xmIYFF vAN DonssEN, or RENKUM, NETHERLANDS, YoF RAN'roUL, ILLINOIS `MTElvlfffojlfrmi;

'sLEEvn-VALVE `ENGINE i 'Application filed Augstriia'iezs. vkSerialNo.12s,7fs4.

' n This invention relates to internal combus-.

Y tion engines of the sleeve valve typeand the primary object-is theprovision of an engine of provisionpof valve ports, oneon' each sideof.`

K the top of the cylinder, each of--which communicate with a valveopening in a main stationary chamber or sleeve support above thecylinder. f f v f of cams which Vmay positively operate the two valvesleeves back and` forth in both Vdirections. These cams are sodesigned'that the 2Osleeves are both stationary duringfthe pressureperiods of the engine, that is, during the compression and during theeXplosion periods.'

Y A further obj ectis the provision of a spark plug in each ofthe portswhich are provided between the top of the' cylinder and the valves. Theldual ignition provided `by these two sparkv plugsV causes: :an eiiicientcombustion since both spark plugs are in a comparatively small' chambercommunicating with' the pis'- 'ton chamber,jeach of these chambers orports in which ythe plugs are locatedbeing full of fresh fuel at thetime the explosion occurs. n

The two sleeves ofthe valve are each pro- I '35 videdpwith openingswhichare ladapted tobe moved rinto registration at the proper'period,landgonelof the/ sleeves isopen to receivey the othersleeve n' withinthegf'same. i.' vThe inner sleeve is provided with ajpair of openings on40 each side of the plane of symmetry ofthe cylinder Vandthe innersleeve between these two openings is partitioned` or closed by alcentralA drum having flaring guide surfaces whichV direct the fuel andburnt gases forward` 5 and away from `the openings .inthesleeveThe'incoming fuel is supplied thru one'end of these two valve sleevest-o the cylinder when the one openingin'the inner sleeve is properlypositioned Aadjacent Yto the opening 5 in the housing chamber and after;the'inner sleeve has beenV moved, the second opening is AND IVAN 'LLrnocmon,

moved into registration with the chamber opening `to permit theeXliaustof the'burnt gases thru the other 'end ofthe ftwo sleeves. Thesleeves will therefore be cooled bythe incoming fuel so as to preventthe excess teinperatures which might otherwise result from the hot burntgases. `The sleeves lare'heated and cooledv in such rapid successionthat they assumefa practically permanent size, and un? due eXp'ansionistherefore eliminated'. AV further object of the invention is the motionand so that vthey remain Vstationary for va comparatively long timeduring 'the pressure periods of the engine. A pair of cams 1sprovidedffor the operation lof a reyprovisionof cams which operatethevalve i sleeves, these cams being designed lso that the Y A sleeveskare-'rapidly moved whenthey arein A further object is the provision vofa set i the operation ofthe inner sleeve. Eachj of the sleeves hasanup'wardlyprojecting lug bywhich lthey are operating from the camoperating slide. Thecams are contained in acliamber or housing so thatthe proper oil'- ing of the cams and sleeves may be provided for. Thevlubrication is preferably of the forced or positive nature'fand' the oilisdirected thru-thehollowcam shafts and oils the cam shaft bearings,the-cam surfaces and the cam striking blocks provided I in the Icamslides; A constant levelof the oil is vmain'- tained in the reservoirvor housing,the excess being carried away vto'a sumpb'y'means of returnpipes. The valve sleeves themselves are lubricated from the reservoir bymeansof oil which vpasses thru holes in the outer sleeve so that it mayvfind its way between the two sleeves.

A Further objects and advantages of thein-Y vention will be more rfullyset "forth vin the n following description, in the accompanying claims,andin the drawings l,wherein one em-` bodiment of the invention is setforth for purposes of illustration. Referring more particularly to theVdrawings: 1

Fig. 1 is a vertical section taken thruthe plane of symmetryof the valveor cylinder 10oA t showing the dividing Wall of the inner' sleeve infull lines.

Fig. 2 is a transverse vertical section on the line 2-2 of Fig. 3.

Fig. 3 is a plan View showing the top of the oil housing in, section. A,

Fig. 4 is'r4 a detail? .view of the outer sleeve.

Fig. 5 is a detail view of the inner sleeve.

Fig. 6 is a horizontal section talzen thru Figs. 7, 8, 9 and 10 arediagrainniatieiiepresentations showing the various stages of theoperation of the engine5 Figi-f2" 'showing customary piston connected ina eiistornaryY crankshaft, not' shown, isi-llustrated. Gbviously theyinvention is intended to be used Withniultiple cylinder' engines.. Thepiston l' is shown` asioperating in la cylinder 2, above which is the;station-ary sleevey contain-ing chamber designated gener;-

`ally-4. In the ease indieatedltheengine. is

shown as adapted to be'eooled by .a Water eirculating.v medium Iand.,tor this purpose av Water jacket 3V is provided around thesyl-inderand' around the combined intakeand eztliaustports 5. s:

lvtou-uted` Within the sleevenh'aniber 4 are two sleeves,.an outersleeve 6andari-.inner-V sleeve 7 ;v the inner sleeve `being sl-idablymounted. Withintlie outer sleeve. The outer sleeve` isV unobstructedthruout its length` and is provided with an opening 8f on each side ofthejsleeve. The-` inner sleeve is provided Wit-hr a pafir .ot openings'9 one onf each side of' the sleeve yand a.. pairof openings ILO-alsolocated. one on each .sideof` the sleeve. The .openings 9 and 10. areadaptedl to .be moved. in registration; alternately With. aport aperture.11.1.providedjinV ther outer sleeve chamber, and when the open.- ilngs8in. the outer i sleeve (i, arein. registration 1With. the opening llanda lso 9 or .10. the fuel or theburnt gases; .travet into or out ofl thecylinder. The inner sleeve-Tris divided centrally by "apartitiondruinijl,

which. isV rigidly eonneeted. tothe! cylindrical sleeve-Walland which isprovided with. a-iar-V ing deiieetor tte. deflect the .inwardly Home ingfuel into. the openings 107,. sisimilar?de#V i'leetor .14 beingfprovidedon the opposite side of the partition- Waillr .12`tof-detleet' the:burnt gases-asl they tra-vel into tlieinner sleeve and straighten. thesegases out and. direct thenrh toward the lett-end of the sleeve Wherethey may be exhausted into a muffler or into the atmosphere in theVcustomary manner. The attaching nut serves to mount the curveddefieetor in place `and attaches the deiiector v13 andthe deiieetor. 14to the partition Wall'12(- Each of the sleeves and 'Thas an upwardlyextending lug designated 16 and 17 -thrua: slot 18 provided at the rightend of theouter sleeve 6V so that it may be moved along andi guided bythe slot 18. These two lugs are operated by two Cain slides and forthis" purpose each lug lis provided With a pin or'js'tud 19 and 20,upper fittings of Whichare mounted in the eain slides.. The stud 1 '9 onthe outer sleeve is niountedin a hole.Y at the lett end of theeainslidel, andthe stu'd 20 on the inner sleeve is mounted atl -therightside oi'. the cani slide 22; The twoy Cain sleeves 21 and 22 haveinwardly projeeting portions 23 and 2li respectivelyin. which the studs19 and 20 are fitted with, a elearanceiit so -thatthe Cain: slides maybe moved' vertically When disassenibling and thu-s beireed fromengagement With. pins 19.- and 20.,

The cani slide21 forthe/outer sleeve has an. upwardly extending,projection. .25l which rigidly supports a Cain striker block 26. A

bolt 2*? serves to connect theabloelrv. to the i support 25.1. The Vcanislide-22 which. operates the inner sleevef'is. liliewiseprovidedrwith. a

Cain strikerbloolrlQS. The tvvo bloeit-s 26. and 28 are.v oppositelyIreciprocating back., `and forth. by. meansl 'of cams mounted upon..tlie tvvo eainshafts 29. and; 30j. g'liiese eanishafts support the outerslide cams 31 and SQ'and support the. two. eains and afwhioli. operatethe lc-:ain striker block.. 28 .tor' the..,operatilon ofthe innersleeve..g.'llhe..eaim striker blockl is shown as liarvingpa substantial;triangular shape j the .earns are so designed that .enfgagementisrnaintained with both. ot the earns of the striker hlocllat.alltirnes.v The. carnsfopcrate to move the striker blockpositivelyback `and forth which. thus operates thev earn.: slide mountedupon-fhalls. 35 and thus. causes the operation vofthe sleeveftoivhiohwitiseonnected...

The cam slides are retained place upperportion 3.6. offthe cam housing37 and .a top vineiosure. 3.8 lis-'provided'.to entirely house thelearnsand pro-videan,,Qilehaniber or reservoir adapted tobe maintained: partlyfilled With-oilby a suitableforoe feed oil Supply,` l ff; A

` The earnshafts. 29. and. 30 are'e'a'ch provided. With gears `39 whichintermesh rtogether, one of Wliiohbeingrigidly'conneeted to. a bevel.Vgear-'.40 vvhiehisoperated-.by a pinion- 41- mounted fat, ther upperLend of a camshaft 42.which is-operatedsin lthe eusr toma-ry mannerroni-(theengine.The cam.- 130 proper speed and this causesthe constantrotation of thef' cams tof'reciprocate lthe sleeves back andforth. 3"The camsha'fts'and camslide plugsv are mounted dir e'ctly above lthecylinder of the engine and as will'beseen from Fig. 2l the two valvesleeves 6 and 7v and the stationa ry supportingsleeve of chamber 4 arelov cated only a slight distance'above' the limit as at 45 withthe'upper end of the'cylinder';

The' vvalve ports extend upwardly so Vthat they may communicate withvpractically the entire i verticall extent 'of the. valve sleeveopenings when these openings Varel in the proper position. The fuelflows into the "two valve ports 43 yand 44 `simultaneously @the strikerblock will obtain.

thru the openings provided on the opposite sides of the sleeves andsimilar flows out of the two ports simultaneously .when 4.the sleeves V`are in the properpositionfor `the exhaust period. :i

Referring more particularly to. Figs. 7 to 10 inclusive, the cams 31 and32 controllingY the cam striker block'26 are indicated in full lines inVthese figures and likewise the opening 8 in the outer sleeve 6-isindicated in full lines. The cams 33 and 34 which control the camstriker block 28 are shown in dotted lines and the openings 9 and 10 ofthe inner sleeve 7 are correspondingly shown in dotted lines in adiagrammaticmanner. As shown in VFig. '7, the cams and the strikerlblocks are in such position that the 'opening 8 is in Vregistration withthe opening l9 and both of these openings are located centrally-abovethe cylinder. and therefore in registration with the openingV port l1 asalso shown in Fig. 6. In this position the piston is just starting torise so as to exhaust the burnt gases which will be deflected-to theleft by the deflector 14 shown in Fig. 6. :The cams 3l and 32 rotate inthe direction indicated by the arrows and these cams are provided withsurfaces such as 46 which are concentric with the centers of rotation.concentric surfaces 47 arealso provided on the cams so that when theVcam striker block is located by a surface VV46 of one cam it will 'be'in contact with Va surface 47 ofthe other cam, and as these `surfacesare concentric with the axis of rotation nomovement of The strikerblock, due to the design of the cams, is maintained stationary for aconsiderable period of time which is abo-ut to start with the engine atthe period indicated in Fig. 7, during which time the piston travelsupwardly and exhausts the burnt gases while the two valve slides arestationary. After a slight movement of the piston Similar froni theposition-indicated pin Fig. 7;the block '26 remains-stationary and'consequently the Vouter sleeve' is stationary-butthe i camV surfacesofthe cams 33 and34` arelsuch that the block 28^will begmoved to the lef-tina positivemann'er solvaslto close the cyl-V kinder ports and shortlythereafter place the openings-8and ports 11 in registration -with Vtheintake openings 10V ofthe inner sleeve. j

The piston will then travel downwardly untill-itl reachesa point`indicated in Fig. 8 kduring which time the vsleeves .remain'fstationarywhile the Vfuel is suckedinto the c yl- TheV compression period starts,Vas' Vindicated, in 9 with'the portf8 `remo'vedto the left 2 of thecenter .off` thej cylinder 2 and sov consequently out-'of'registrationzwithl the l ports 11. Thus the' outerfsleeve is'. placed l betweentheports 11 and openings VA9 Aand the two sleeves remain- .thisfposition during vthe compression kperiod and: consequentlyn'orelative-movement takesplajce rwhilefthe sleeves are subjected to.arpressure at1 Vthe ports 11; It is ltherefore unnecessary'toprovide`piston rings ony the sleeves lsince ."considerable 'distanceextends-between'the openings1f8 and Q 'during pressure periodsand thusprevents any leakage .fromv taking place around" and between thesleevesg f After the compression period .has been; completed asindicated in Fig.'10.,the fexplosio-nfftakes place bytheliri-ng of'the-spark plug v48 in each of,thecylinderports.y

, `Duringtheinterval occurring betweenthelfl-bo i positions indicatedain:Figs.q9'and 10, the sleeves and the gcam lstriker :blocks are:maintained l stationary and these parts are ystill maintainedstationary ifor som'ef time.l after theign'ition period and "during vtheVstart of the expansion stroke -of- .the pistonV The camswhich4 controlthe two striker blocks, as shown,I are 'so designed that -theymotion-imparted to the blocks is very quick so that a veryrapidopening1A andclosingaof the valves will be produced. The valveopeningsf8,9, El() 'andgll being Vweide* and extending thru'out nearlythe entirecircurnferenceof the sleeves :will produce and make possible a:large `valve opening tofpe'rmit fthe@ rapid ,iiow' Vof iffuelandjexhaustfgasesl lThe valve being Y 'operatedposi-tively in Vbothdirections` per,-

,mitsl their f rapid opening. "and closing since the time'delayof-aspringjaat' high speedsis Y @not present: -z "gq i, The entire head of'the eng'iinecfniay'fl .be detachable soythat vthefentireffvallvemechanismmayfbe removed-by the "re-" moval o`f-V- the 'boltsf '49. Theupper housi ing-A88 and ltheupper 'partBG of the yvalve l I housingar'efadapt'edt'o be easily detachedv for" inspection Yandremoval ofthecam slides; In order toV prevent the incoming Vfuel mixture from lindingitsway between theval've'sleevesv .6 and :7, an auxiliary. sleeve apart50 isfixed thereof andiWe d01not intendl to'be limited to thep1eciseformf-of construction Whiclrhas `been choseny 'herein for thepurpose of our invention-. i

l. Inan engine ofthe class described, a cylinder, avalve port at oneendof said cylinderfa piston adapted to* reciprocate in said cylinder, apair of sleeves mounted one Withii'nfthe other adjacent to: said-'valvesport, a pairl of` openings-fin the'y inner.' sleeve adapted tocommunicate successively 'with saidfvalve port, al partition; Withinsaid inner sleevel to close 1- said sleeve'` between said pair of open'-ings", an'opening in ythe outer sleeve adapted to vregister"periodically'With' said: valvey port, means, for reciprocatingreach 'of said sleeveslongitudinally, and Ameans rfisxed tof` said inner sleeve; forV guidingsaid? outer sleeve;

2: In' anf'engine oli the class described,a cylinder, al pa'irof-J valveports at the outer end: ofj said:I cylinder,; apiston adaptedtoreciprocatey in cyl-in'deiga. pair of sleeves mounted"fone Within4their other adjacent to said valve p orts,fa 'pair ofy oppositelyposirtionedf intake openings inpthe innersleeve and ings?V in the innersleeve v adapted ltocomrnunilime-Sab inder, a pairofY `valve.` ports'extending upf War-diy' and? opening into the head of said cylinder, apair 'olf telescoping reciprocating sleeves the outer of Which-'isprovided With-a pair of openings, the inner of which is provided VWithtvvopairs of openings, a partition in 'said inner sleeve locatedbetvveenthe pairs of' openings, means forrecipi-ocating said outer and'inner sleeve to move thel openings so that they Willl registersimultaneously with both ports of the cylinder and alsofmaintain saidsleeves stationary during the entire period of. anypressure period of'thezengine Y' I In: testimony rwhereof we aliX-Iour signatu'resrfv iBRIAND KRUYFF. VAN DORSSEN. IVAN L. PROCTOR. s

a pair of opposite'lyl positioned exhaust-open the sainer between thelinletandtheiexh'iaust 'Y openings, a pair ofl `openings in the outersl'eeve adapted to:register periodically with 'said val-ve ports, a;pair:l of'engine driveni roL i tatabl'e cams foreachy sleeve;4 andareciprocating member operated byfeach pai-rfof said cams and connected'tothe sleeves to positively` reciprocate: the 'same in both directions;

-. 3f. In. an internal' combustion engine, "a 'cylindena pair 'ofvalveports extending up- Wardly and opening-into thehead of said cylindergapain oftele'scoping reciprocating sleeves tllejouter ofWhiehjis'provided with a painiof openings, the inner of whichV is pro-`vided'fvvilth'twopairsof openings, a partition Y in said inner sleevelocated betvveenthe pairs off openings, neansfonreciprocating said outeriandz'innerr sleeverto nove the openings so that they Will registersimultaneously with both ports of the cylinder, as and?V for: the 'Ypurpose described. f

A- 4:2 NInaninternal combustionengine, a cylyinder', a pair ofvalve'p'orts: extending upinder, a pair of teleseoping' Vrec'ziprocatingWaadly andope'n'ing'into the head or said cylsleeves they outer ofwhich; is providedI Withl a painof openings,.the innen of Which' ispro?videdivvith two pairs of openings, a partition inssaidinnersleevelocatedbetween'the pairs of openings, means forrreclprocating saidoutf en

